Massage ball



FIG. 1 is a perspective view of a massage ball showing my new design.

FIG. 2 is a front elevational view thereof.

FIG. 3 is a rear elevational view thereof.

FIG. 4 is a left side elevational view thereof.

FIG. 5 is a right side elevational view thereof.

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken line showing in the drawings illustrates unclaimed portionsof the massage ball and forms no part of the claimed design.

CLAIM The ornamental design for a massage ball, as shown and described. 